GDB 4.16 dumps core with egcs-1.0

[Raffaele Sena]

> 
> Now I use pgcc-1.0.1 (based on egcs-1.0.1) and the bug still occurs. I
> don't think that pgcc changes the init-code.
> 
	Again, you should be able to get a working gdb by uncommenting
	the following lines in gdb-4.16/gdb/Makefile.in and
	rebuilding gdb:

	Makefile.in: line 96

	# To use your system malloc, uncomment MMALLOC_DISABLE.
	#MMALLOC_DISABLE = -DNO_MMALLOC
	# To use mmalloc but disable corruption checking, uncomment MMALLOC_CHECK
	#MMALLOC_CHECK = -DNO_MMALLOC_CHECK

	Maybe you also want to comment out the previous lines, just to
	make sure.


	Also, I'm still not convinced egcs is responsible for the problem.
	Even if it calls malloc in the initial phase, when it's linked
	with the mmalloc package, all the standard allocation functions
	(malloc, free, calloc, realloc) are redefined to call the
	m-functions.

	So, you should get the error if you have other packages called
	by gdb (shared library ?) that allocate memory then released by
	gdb. Again I had the problem when I built gdb-tk, based on
	gdb-4.16, where I think some part of the tk library were trying
	to release memory allocated by X/11.

	Anyway, I'll try to build a standard gdb-4.16 and see what happen.

-- Raffaele